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Todays Project - What did you do today?
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11-21-2015, 07:52 AM
The piece of aluminum was one of three, I got Willie. About 1 1/4 thick with a couple of shallow pockets machined in one face and the edges having some profiling done, along with what Im guessing were holes for rivets along the edge. Guessing they failed QC on the way through the line, have scrap engraved on them.
Free advice is worth exactly what you payed for it.
Greg Thanks given by: Highpower
 (11-21-2015, 12:20 AM)Highpower Wrote: Has anybody tried grinding the ID of the inner race on a deep groove ball bearing before? (sigh...) Is this a sealed or open bearing? If it's open fill it with molten paraffin, set it up & grind away. Once finished, remelt the paraffin. If it's a sealed bearing I don't have any suggestions. BTW, I've had that feeling many times about engineers who just don't have a clue how to make their designs. 
11-21-2015, 09:57 AM
Yep - the amount of times I've wanted to bitch-slap the designer who said "no - the engine will drop out of the car, not into it..."
Hunting American dentists since 2015.
11-21-2015, 11:14 AM
(11-21-2015, 09:23 AM)Dr Stan Wrote:(11-21-2015, 12:20 AM)Highpower Wrote: Has anybody tried grinding the ID of the inner race on a deep groove ball bearing before? (sigh...) Double metal shielded so.... Unfortunately those engineers knew EXACTLY what they were doing! They designed the part to use an odd-ball bearing that you can't buy over the counter, to prevent owners and independent repair shops from rebuilding the unit in question. They have the bearings specially made for their use only. I need to replace the bearing in my cars distributor because after a mere 200K miles it's starting to sound a bit crunchy. Honda will happily sell customers a new distributor housing assembly (# 6) to the tune of $435 retail, but that ain't happenin....  I did manage to find a bearing with a 12,50 ID online late, late last night. Guess I'll give it a good coat of sleeve retaining compound and pray in stays in place. 
Willie
11-21-2015, 11:33 AM
Willie,
Don't suppose you can turn the shaft down to 12mm?  DaveH
a child of the 60's and 50's and a bit of the 40's
11-21-2015, 11:44 AM
I feel your pain Willie - I had a Mitsubishi like that...
Hunting American dentists since 2015.
11-21-2015, 03:38 PM
(11-21-2015, 11:33 AM)DaveH Wrote: Willie,  Actually "I" wished it were that easy Dave. The problem is the bearing is located in the center of the shaft. Turning the shaft down to 12mm would allow me to fit a standard bearing, but then the #1 cylinder position sensor rotor as well as the ignition rotor on the end would no longer fit on the shaft. The bearing and all of the pickup sensor rotors are a press fit on the shaft. 
Willie
11-21-2015, 03:58 PM
(11-21-2015, 09:57 AM)Mayhem Wrote: Yep - the amount of times I've wanted to bitch-slap the designer who said "no - the engine will drop out of the car, not into it..." Ahhh, yes.... the good ole days.  Guess what - it ain't coming out through there!  ![[Image: 30884560027_large.jpg]](http://carphotos.cardomain.com/ride_images/3/2354/4121/30884560027_large.jpg)
Willie
11-21-2015, 04:53 PM
My mechanic buddy says that an engineer caught his wife in bed with a mechanic, and mechanics have been paying for it ever since.
Free advice is worth exactly what you payed for it.
Greg
11-21-2015, 05:32 PM
(11-21-2015, 03:38 PM)Highpower Wrote:(11-21-2015, 11:33 AM)DaveH Wrote: Willie, I didn't think it would be possible - always the case  DaveH
a child of the 60's and 50's and a bit of the 40's
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